Buffing Wheel is made of finely cotton cloth by
special technology and is the precision polishing tools of metal and
non-metallic workpieces,It is made of mutillayers
100% cotton cloth sewn surround by the center,with a leather lip attached
around the inner hole. High quality material,
exquisite workmanship, long service life.Specially used for
polishing jewelry, ornaments, or precise products.
The layers of cloth edge
with pile processing,suitable for metal, jewelry hardware,stainless steel,
aluminum products, wood, plastic, ceramic, glass and watch industry grinding
and polishing.
Working with polishing
wax polishing effect is better.
Treated Buffing Wheels have a special chemical added to the
cotton which gives them more aggressive cutting action allowing them to work
faster than standard cotton spiral sewn buffing wheels. The chemical treatment
also gives these buffs a longer lifespan.
Treated buffing wheels can be used in place of Cotton Spiral
Sewn buffing wheels for cutting and coarse buffing.
Features:
-- Suitable for Metal,
jewelry, metal, stainless steel, aluminum, wood, plastic.
-- Surface of the
ceramic, glass and watches industry grinding and polishing.
-- Use with polishing wax
polishing better.
-- Can be stacked onto
tapered spindles for required thickness.
We distributes and wholesales various brands of Bonded Abrasives, Abrasive Sanding Disc, Cutting Wheels , Flap Wheels , Flap Disc Backing Pad, Flap Disc Adhesive , and Surface Conditioning Product etc, and enjoy a high position among consumers.
Cotton Buffing Wheels,Buffing Wheels,Polishing Wheel,Cut Off Wheels Zhengzhou Jiading Abrasive Manufacturing Co.,Ltd , https://www.jiadingabrasive.com
The development of the access control products market has seen expansionary development. According to comprehensive survey data, in 2009, the domestic access control system reached 3.84 billion yuan. According to relevant survey and consulting company statistics, under the government's continuous expansion of large-scale infrastructure projects and the rapid development of the industry market, the market size of the domestic access control system is expected to reach more than 5 billion yuan in 2010, an annual increase of about 30%. The domestic access control market is now in a situation of “contending for a hundred schools of thoughtâ€.
According to statistics of survey data, non-contact IC cards are absolutely mainstream in front-end identification devices, occupying more than 90% of the market. In the sales of single contactless IC card access control system, cards and readers accounted for more than 30%, while in the sales of all-card system with contactless access control card sales theme, the card accounted for 50%~60% The proportion of Mifare cards from foreign NXP and compatible Mifare cards produced by Fudan Microelectronics has become the most important preferred accessory product in the Chinese market.
From the perspective of front-end identification devices, non-contact IC cards are the absolute mainstream, accounting for about 90% of the market.
In the current market demand, the type of sales in the access control market is mainly 4-door and 2-door controllers; according to the output value, the output value of the 4-door controller accounts for about 50% of the market, and the 2-door controller is approximately About 40%; In addition, a single door and more than 4 controllers accounted for about 10%; according to the number of product sales to analyze the order and completely reversed, single-door access controller sales accounted for 45% of the entire access control market, 20% accounted for 30%, 40% accounted for 20%, and sales of other 4 or more controllers accounted for 5%. If the reader is differentiated according to the high, medium and low-end markets, the proportion of high-end products and middle- and low-end products in the market is probably about 1:3.
From the system architecture point of view: there are RS485 architecture or RS485IP network hybrid architecture or all-IP network architecture, three coexist, but the RS485 architecture is the most popular, in recent years, all-IP network architecture has developed rapidly, but the IP network architecture is still not the mainstream of the market. Users prefer the hybrid architecture of the RS485 IP network.
From the point of view of card reading technology, development is fast. In recent years, CPU cards will gradually replace IC cards, but it will take time to become mainstream. Biometric technology will be favored by users, especially fingerprints, palms, and facial recognition. In the composed system may also require a variety of reading technology compatibility.
From the linkage technology point of view: put forward high requirements for the linkage, especially with television monitoring, fire alarm, building automation control system linkage. The linkage method is based on the linkage of basic hardware to the development of linkage based on pure software. Especially with the rapid development of IP networks, it highlights that the network provides convenience for software-based linkage, and only software linkage is more suitable for digitization and networking.
From the point of view of the card application: Because of the proximity card-based or biometric-based identification, the access control will inevitably develop toward the single card, and the prospect is "one card, one library, one platform." This trend has gradually been accepted by the market.
According to comprehensive statistics, Chinese manufacturers currently occupy more than 90% of the small and medium-sized projects in China's access controller market. In the 100 or more major projects, Chinese manufacturers have increased year by year, gradually occupying nearly 60% in recent years. About the market share of foreign manufacturers in China due to differences in the development of North and South and the impact of political and security risks, in the North China market share of more than 70%, followed by East China occupied 55%, South China 35% share, Huaxi accounting 25% share.
According to Dashishi Huang Zhiyong’s introduction, after China’s access control technical standards dispute, in 2011, domestic access control products were valued by domestic large and medium-sized projects, and many domestic first-line brands competed with foreign brands on the same platform. In the domestic high-end access control market, domestic access control products from the past 30% share to the first half of 2011, China's large and medium-sized projects in China to achieve a 45% breakthrough in access control. The low-end market is still 90% of domestic access.
In terms of international trade, due to the different domestic and foreign circumstances, the domestic market access direction is mainly oriented towards the development of “one-card access control,†supplemented by “integrated security†applications, expanding the platform design of multi-application systems, system maintenance is complex, and exports are difficult to guarantee. After the construction of after-sales service system, Chinese-made access control products have very few exports of high-end access control card systems; the products available for export are relatively simple products such as domestic low-end simple access control products, intercom access products, etc., and are subject to the international financial crisis. After three years of influence, the volume of domestically-made access bans has been relatively reduced. The direction of the market shifted from the original European and American markets to the Southeast Asian market, and the profits were relatively thin.
Judging from the security systems of airports, prisons, stadiums, and campuses that are currently being built or rebuilt, access control systems, as an important subsystem, are not only satisfied with the role of a single entrance and exit control and protection, but are gradually being used as a network of access control systems. With the promotion, the access control system has begun to develop from the single subsystem to the integrated control security platform that integrates and links with other systems, and the market scale will also gradually expand.
Faced with the status of access control systems in the overall security system, they are increasingly occupying the “core†position, which makes the complexity of the management of access control systems gradually increasing. This has attracted many software developers to join the access control industry chain. With the addition of a large number of professional IT software personnel, in the future, the access control system will be more convenient in operation, will operate faster, and will be applied more widely.
When an industry develops to a certain degree, it will require cross-border cooperation to gain new room for improvement. Today's access control products are gradually turning their attention to how to improve the added value of access control systems. It is hoped that more functions will be created through the integration of access control systems with other systems. The development of the access control market presents a phenomenon of contending, and in this development trend, the integration of the access control system with the video surveillance system has become a hot spot for the access control manufacturers.